:root{
  --bg:#F4F5FB;--card:#FFFFFF;--surface-2:#F7F8FD;--ink:#17213B;--ink2:#5A6584;--line:#E3E6F0;
  --accent:#5B4BDB;--accent-2:#EEEBFF;--on-accent:#FFFFFF;--blue:#1F6FB2;--box:#E9E4FB;--box-ink:#2D2470;
  --good:#12A46B;--good-bg:#E6F7F0;--bad:#D23B5A;--bad-bg:#FDEBEF;--shown:#C97F00;--shown-bg:#FFF5DF;
  --radius:14px;--shadow:0 1px 2px rgba(23,33,59,.06),0 4px 16px rgba(23,33,59,.06);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0F1424;--card:#171E33;--surface-2:#1C2440;--ink:#E8EBF5;--ink2:#9BA5C2;--line:#2A3352;
  --accent:#8C7DFF;--accent-2:#252052;--on-accent:#0F1424;--blue:#6FB3EE;--box:#251F4D;--box-ink:#D9D3FF;
  --good:#3FD39A;--good-bg:#12352A;--bad:#FF7A93;--bad-bg:#3D1A25;--shown:#F5B94A;--shown-bg:#3A2D10;
}}
:root[data-theme="dark"]{
  --bg:#0F1424;--card:#171E33;--surface-2:#1C2440;--ink:#E8EBF5;--ink2:#9BA5C2;--line:#2A3352;
  --accent:#8C7DFF;--accent-2:#252052;--on-accent:#0F1424;--blue:#6FB3EE;--box:#251F4D;--box-ink:#D9D3FF;
  --good:#3FD39A;--good-bg:#12352A;--bad:#FF7A93;--bad-bg:#3D1A25;--shown:#F5B94A;--shown-bg:#3A2D10;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 Manrope,system-ui,-apple-system,"Segoe UI",sans-serif}
a{color:var(--accent)}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4{font-family:"Space Grotesk",Manrope,sans-serif;line-height:1.2;margin:0 0 .5em}

/* шапка */
.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--card) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top-in{max-width:1080px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.logo{font-family:"Space Grotesk",sans-serif;font-weight:700;font-size:19px;color:var(--ink);text-decoration:none;white-space:nowrap;display:inline-flex;align-items:center;gap:9px}
.logo .mark{width:30px;height:30px;flex:none}
.logo b{color:var(--accent)}
.tabs{display:flex;gap:4px;flex-wrap:wrap;flex:1}
.tabs a{padding:6px 12px;border-radius:999px;text-decoration:none;color:var(--ink2);font-weight:600;font-size:14.5px}
.tabs a:hover{background:var(--surface-2);color:var(--ink)}
.tabs a.on{background:var(--accent);color:var(--on-accent)}
.theme{border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:999px;width:36px;height:36px;cursor:pointer;font-size:16px}

.wrap{max-width:1080px;margin:0 auto;padding:24px 16px 64px}
.crumbs{font-size:14px;color:var(--ink2);margin-bottom:6px}
.crumbs a{color:var(--ink2)}
.page-title{font-size:clamp(28px,5vw,40px);margin:4px 0 6px}
.lead{color:var(--ink2);margin:0 0 22px;max-width:760px}

/* главная модуля */
.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:24px;align-items:stretch;background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;margin-bottom:24px}
.hero-txt{padding:26px 28px}
.hero-num{font-family:"Space Grotesk",sans-serif;font-weight:700;font-size:64px;line-height:1;color:var(--blue)}
.hero h1{font-size:clamp(28px,4.4vw,40px);font-weight:500;letter-spacing:.01em;text-transform:uppercase;margin:6px 0 16px}
.hero img{width:100%;height:100%;object-fit:cover;min-height:240px}
.learn{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px 22px;font-size:14.5px}
.learn h4{font-family:Manrope,sans-serif;font-size:14.5px;margin:0 0 2px}
.learn ul{margin:0;padding-left:16px;color:var(--ink2)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}
.card{display:block;background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;text-decoration:none;color:var(--ink);border:1px solid transparent;transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--accent);transform:translateY(-2px)}
.card .ic{font-size:26px}
.card h3{margin:8px 0 4px;font-size:20px}
.card p{margin:0 0 12px;color:var(--ink2);font-size:14.5px}
.bar{height:8px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.bar i{display:block;height:100%;width:0;background:var(--good);transition:width .3s}
.bar-l{font-size:13px;color:var(--ink2);margin-top:6px}
.modules{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.module{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;text-decoration:none;color:var(--ink);display:block}
.module img{aspect-ratio:16/9;object-fit:cover;width:100%}
.module div{padding:14px 18px 18px}
.module .n{font-family:"Space Grotesk",sans-serif;font-weight:700;color:var(--blue);font-size:28px}
.module.soon{opacity:.55;pointer-events:none}
.module.soon div{padding:18px}

/* оглавление внутри страницы */
.toc{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 22px}
.toc a{background:var(--card);border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-size:14px;text-decoration:none;color:var(--ink)}
.toc a:hover{border-color:var(--accent)}

/* страница учебника */
.page{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px 28px;margin-bottom:22px;position:relative}
.page-no{position:absolute;top:14px;right:18px;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink2);background:var(--surface-2);padding:3px 9px;border-radius:99px}
.sec{border-top:2px solid var(--line);padding-top:16px;margin-top:26px}
.sec:first-of-type{margin-top:6px}
.sec>h2{font-size:22px;color:var(--blue);font-variant:small-caps;letter-spacing:.03em;font-weight:700}
.sec>h2 span{font-variant:normal;font-weight:400;color:var(--ink);letter-spacing:0}
.sec>.sub{margin:-6px 0 12px;font-style:italic;color:var(--ink2)}
.intro{color:var(--blue);font-weight:600}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.cols-31{display:grid;grid-template-columns:2fr 1fr;gap:28px;align-items:start}
.fig{margin:14px 0}
.fig img{border-radius:10px}
.fig figcaption{font-size:13px;color:var(--ink2);margin-top:6px}

.box{background:var(--box);color:var(--box-ink);border-radius:10px;padding:14px 18px;margin:12px 0}
.box p{margin:.2em 0}
.box .ex-line{font-style:italic;opacity:.9}
.box hr{border:0;border-top:1px dashed currentColor;opacity:.35;margin:10px 0}
.box h4{font-family:Manrope,sans-serif;font-size:15px;text-transform:uppercase;letter-spacing:.04em;margin:0 0 6px}
.note{background:var(--surface-2);border-left:4px solid var(--blue);border-radius:8px;padding:12px 16px;margin:12px 0}
.note h4{font-family:Manrope,sans-serif;text-transform:uppercase;font-size:14px;letter-spacing:.05em;color:var(--blue);margin-bottom:6px}
.help{font-weight:700;color:var(--bad);font-size:14.5px}
.help a{color:inherit}
ul.dots{margin:.3em 0;padding-left:20px}
.starters{font-style:italic;color:var(--ink2)}

/* статья */
.article{border:1px solid var(--line);border-radius:12px;padding:20px 22px;margin:16px 0;background:var(--surface-2);font-family:Georgia,"Times New Roman",serif;font-size:16.5px}
.article .tag{display:inline-block;background:#E8572A;color:#fff;font-family:Manrope,sans-serif;font-weight:800;padding:2px 10px;border-radius:4px;font-size:14px}
.article h3{font-family:Georgia,serif;font-weight:400;font-size:clamp(22px,3.6vw,32px);margin:10px 0 14px}
.article h5{font-size:16px;margin:14px 0 4px}
.article .pull{font-size:20px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:8px 0;margin:12px 0}
.article p{margin:0 0 .7em}
.colum{column-count:2;column-gap:26px}
.colum h5{break-after:avoid}
.story{font-family:Georgia,serif;font-size:16.5px;background:var(--surface-2);border-radius:12px;padding:18px 20px;border:1px solid var(--line)}

/* упражнения */
.ex{margin:16px 0 8px}
.ins{font-weight:700;margin:0 0 8px}
.let{display:inline-block;color:var(--blue);min-width:20px;font-weight:800}
.audio-ic{color:var(--accent)}
ol.items{margin:6px 0;padding-left:26px}
ol.items>li{margin:6px 0}
ol.alpha{list-style:lower-alpha}
.dlg{display:grid;grid-template-columns:auto 1fr;column-gap:8px}
.dlg b{color:var(--ink2);font-weight:600}
.wordbox{display:flex;flex-wrap:wrap;gap:6px 18px;border:1px solid var(--line);border-radius:8px;padding:8px 14px;margin:8px 0;font-style:italic}
input.gap,select.sel{font:inherit;color:var(--ink);background:var(--card);border:0;border-bottom:2px solid var(--accent);border-radius:4px 4px 0 0;padding:1px 6px;min-width:3.5em;max-width:100%;outline:none}
select.sel{border:1px solid var(--line);border-bottom:2px solid var(--accent);padding:2px 4px;cursor:pointer}
input.gap:focus,select.sel:focus{background:var(--accent-2)}
input.gap.wide{width:100%;display:block;margin-top:4px}
.ok{background:var(--good-bg)!important;border-color:var(--good)!important;color:var(--good)!important}
.bad{background:var(--bad-bg)!important;border-color:var(--bad)!important;color:var(--bad)!important}
.shown{background:var(--shown-bg)!important;border-color:var(--shown)!important;color:var(--shown)!important}
.choice{display:inline-flex;gap:0;border:1px solid var(--line);border-radius:8px;overflow:hidden;vertical-align:baseline}
.choice button{font:inherit;font-style:italic;background:var(--card);color:var(--ink);border:0;padding:1px 10px;cursor:pointer}
.choice button+button{border-left:1px solid var(--line)}
.choice button[aria-pressed="true"]{background:var(--accent);color:var(--on-accent)}
.choice button.ok,.choice button.bad,.choice button.shown{font-weight:700}
.tf{margin-left:8px}

.toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:12px 0 4px}
.btn{font:inherit;font-weight:700;font-size:14.5px;border-radius:999px;padding:7px 16px;cursor:pointer;border:1px solid var(--accent);background:var(--accent);color:var(--on-accent)}
.btn.ghost{background:transparent;color:var(--accent)}
.btn.plain{background:transparent;color:var(--ink2);border-color:var(--line)}
.score{font-weight:800;font-size:14.5px;padding:4px 10px;border-radius:99px;background:var(--surface-2)}
.score.full{background:var(--good-bg);color:var(--good)}

details.reveal{margin:8px 0;border:1px dashed var(--line);border-radius:10px;padding:6px 12px;background:var(--card)}
details.reveal>summary{cursor:pointer;font-weight:700;color:var(--accent);font-size:14.5px}
details.reveal[open]>summary{margin-bottom:6px}
details.reveal .key{white-space:normal}

.script{border:1px solid var(--line);border-radius:10px;margin:10px 0;background:var(--surface-2)}
.script>summary{cursor:pointer;padding:8px 14px;font-weight:700;color:var(--ink)}
.script .lines{padding:0 16px 12px}
.script .line{margin:4px 0;display:grid;grid-template-columns:2.2em 1fr;gap:6px}
.script .line b{color:var(--blue)}
.script .line.speaking{background:var(--accent-2);border-radius:6px}
.script h5{margin:12px 0 4px;font-size:14px;color:var(--ink2)}
.tts{display:flex;gap:8px;align-items:center;padding:0 16px 10px;flex-wrap:wrap;font-size:13px;color:var(--ink2)}

.people{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;max-width:420px}
.people img{border-radius:8px;aspect-ratio:1;object-fit:cover;width:100%}
.pics{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;max-width:440px}
.pics figure{margin:0}
.pics img{border-radius:8px;aspect-ratio:1;object-fit:cover;width:100%}
.pics figcaption{margin-top:4px;display:flex;gap:6px;align-items:center}
.pics figcaption select{flex:1}

/* вставка слова */
.ins-row{line-height:2.1}
.ins-row .slot{display:inline-block;width:14px;height:1.4em;vertical-align:middle;border-radius:4px;cursor:pointer;position:relative}
.ins-row .slot:hover{background:var(--accent-2)}
.ins-row .slot::after{content:"";position:absolute;left:6px;top:15%;bottom:15%;width:2px;background:var(--line)}
.ins-row .slot.picked{width:auto;padding:0 6px;background:var(--accent);color:var(--on-accent);font-weight:700}
.ins-row .slot.picked::after{display:none}
.ins-row .slot.ok,.ins-row .slot.bad,.ins-row .slot.shown{width:auto;padding:0 6px}
.ins-row .slot.ok::after,.ins-row .slot.bad::after,.ins-row .slot.shown::after{display:none}
.word-tag{font-style:italic;color:var(--ink2)}

/* сборка вопроса */
.order{border:1px solid var(--line);border-radius:10px;padding:8px 10px;margin:6px 0}
.order .line{min-height:38px;border-bottom:2px dashed var(--line);padding:4px 0;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.order .bank{display:flex;flex-wrap:wrap;gap:6px;padding-top:8px}
.tile{font:inherit;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:8px;padding:2px 10px;cursor:pointer}
.order .line .tile{background:var(--accent-2)}
.order.ok .line{border-color:var(--good);color:var(--good)}
.order.bad .line{border-color:var(--bad)}
.order.shown .line{border-color:var(--shown)}
.order .ans{font-weight:700;color:var(--shown);margin-top:4px}

.writer textarea{width:100%;min-height:220px;font:inherit;padding:12px;border-radius:10px;border:1px solid var(--line);background:var(--card);color:var(--ink)}
.writer .cnt{font-size:13px;color:var(--ink2)}

/* справочник */
.gr h3{font-size:17px;margin:16px 0 4px;font-family:Manrope,sans-serif}
.gr .rule{color:var(--blue);font-weight:700;margin:4px 0}
.gr .egs{font-style:italic;margin:2px 0 8px}
.gr .egs p{margin:0}
.glossary{border:2px dotted var(--line);border-radius:10px;padding:10px 16px;margin:14px 0}
.glossary h4{color:var(--blue)}
.glossary p{margin:3px 0}
table.voc{border-collapse:collapse;width:100%;font-size:15px}
table.voc td,table.voc th{border-bottom:1px solid var(--line);padding:7px 8px;text-align:left;vertical-align:top}
table.voc th{color:var(--ink2);font-weight:700;font-size:13px;text-transform:uppercase;letter-spacing:.04em}

/* итоговая панель тестов */
.total{position:sticky;bottom:12px;z-index:10;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:12px 18px;display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-top:22px}
.total .bar{flex:1;min-width:140px}

.foot{max-width:1080px;margin:0 auto;padding:22px 16px 40px;color:var(--ink2);font-size:13px;border-top:1px solid var(--line)}
.next{display:flex;justify-content:space-between;gap:12px;margin-top:10px;flex-wrap:wrap}

@media (max-width:760px){
  .hero,.cols,.cols-31{grid-template-columns:1fr}
  .hero img{max-height:260px}
  .page{padding:20px 16px}
  .colum{column-count:1}
  .people{grid-template-columns:repeat(4,1fr)}
  .tabs a{padding:5px 9px;font-size:13.5px}
}
@media print{.top,.toolbar,.theme,.foot,.site-foot,.cookie-bar,.hello{display:none}.page{box-shadow:none}}
.page>.fig:first-of-type img{max-height:340px;width:100%;object-fit:cover}
.fig.sm img{max-width:260px}.fig.md img{max-width:440px}.fig.flt{float:left;margin:4px 16px 8px 0}.fig.flt img{width:120px}
.ins-wrap{display:flex;gap:10px;align-items:baseline;margin:6px 0}.ins-wrap .ins-row{margin:0}
.ord-row{display:flex;gap:10px;align-items:baseline;margin:6px 0}.ord-row select{flex:none}.art-title{font-family:Georgia,serif;font-size:1.5em;margin:0 0 8px}

/* ================= платформа ================= */
:root{--warn:#E08600;--warn-bg:#FCF1DD;--pink:#E8459B}
.who{display:flex;gap:6px}
.who-chip{display:inline-flex;align-items:center;gap:7px;padding:4px 12px 4px 4px;border-radius:999px;background:var(--accent-2);color:var(--ink);text-decoration:none;font-weight:700;font-size:14px;white-space:nowrap}
.who-chip.t{padding:6px 12px}
.who-chip .av{width:26px;height:26px;border-radius:50%;background:var(--accent);color:var(--on-accent);display:grid;place-items:center;font-size:13px}
.hello{max-width:1080px;margin:16px auto 0;padding:0 16px}
.hello-in{background:linear-gradient(135deg,var(--accent-2),var(--card));border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px;display:flex;gap:18px;align-items:center;justify-content:space-between;flex-wrap:wrap;box-shadow:var(--shadow)}
.hello h2{margin:0 0 4px;font-size:24px}.hello p{margin:0;color:var(--ink2);max-width:560px}
.hello-btns,.row-btns,.cta,.modal-btns,.share-btns{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.btn{text-decoration:none;display:inline-block}
.btn.sm,select.sm{font-size:13px;padding:4px 10px}
.btn.danger{background:var(--bad);border-color:var(--bad);color:#fff}
.btn.danger-o{background:transparent;color:var(--bad);border-color:var(--bad)}
.btn.tg{background:#229ED9;border-color:#229ED9;color:#fff}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.btn.armed{background:var(--bad);color:#fff;border-color:var(--bad)}
.linkbtn{font:inherit;background:none;border:0;color:var(--accent);cursor:pointer;padding:0;text-decoration:underline}
.linkbtn.armed{color:var(--bad);font-weight:700}
input,select,textarea{font:inherit;color:var(--ink)}
.add-form input,.add-form select,.stack input,.stack select,.login-box input,.filter,#pr-space{border:1px solid var(--line);background:var(--card);border-radius:10px;padding:8px 11px;font-size:15px;min-width:0}
.err{background:var(--bad-bg);color:var(--bad);border-radius:10px;padding:9px 13px;margin:10px 0;font-size:14.5px}
.ok-note{background:var(--good-bg);color:var(--good);border-radius:10px;padding:8px 12px;font-weight:700}
.empty{color:var(--ink2);font-style:italic}

/* главная */
.intro-hero{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:30px 32px;margin-bottom:26px;position:relative;overflow:hidden}
.intro-hero::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,var(--accent-2),transparent 70%)}
.intro-hero>div{position:relative;z-index:1}
.course{margin-bottom:30px}
.course-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.course-head h2{margin:0;font-size:26px}.course-head p{margin:0;color:var(--ink2);font-size:14.5px}
.course-tag{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--pink);background:color-mix(in srgb,var(--pink) 12%,transparent);padding:3px 10px;border-radius:99px}
.soon-course{opacity:.75}

/* футер */
.site-foot{border-top:1px solid var(--line);margin-top:30px;background:var(--card)}
.foot-in{max-width:1080px;margin:0 auto;padding:24px 16px 40px;font-size:13.5px;color:var(--ink2)}
.foot-brand{display:inline-flex;align-items:center;gap:9px;font-family:"Space Grotesk",sans-serif;font-weight:700;font-size:17px;color:var(--ink);text-decoration:none}
.foot-brand b{color:var(--accent)}.foot-brand .mark{width:26px;height:26px}
.foot-sub{margin:4px 0 12px}
.foot-nav{display:flex;flex-wrap:wrap;gap:4px 6px;margin-bottom:12px}
.foot-nav a{color:var(--ink);font-weight:600}
.foot-src{margin:6px 0;max-width:820px}.foot-src a{color:var(--ink2)}

/* правовые документы и «Как это работает» */
.legal h2{font-size:21px;margin-top:6px}.legal h3{font-size:16px;margin:14px 0 4px}
.legal-sec+.legal-sec{border-top:1px solid var(--line);padding-top:16px;margin-top:16px}
.legal-ver{font-size:13.5px;color:var(--ink2);margin:-10px 0 16px}
.legal-tbl td,.legal-tbl th{vertical-align:top;text-align:left}
.steps{counter-reset:st;list-style:none;padding:0;margin:0 0 16px}
.steps li{counter-increment:st;position:relative;padding:0 0 14px 44px}
.steps li::before{content:counter(st);position:absolute;left:0;top:0;width:30px;height:30px;border-radius:50%;background:var(--accent);color:var(--on-accent);display:grid;place-items:center;font-weight:800;font-size:14px}
.steps b{display:block}.steps span{color:var(--ink2);font-size:15px}
.how-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.flow{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:0 0 22px}
.flow-box{background:var(--card);border-radius:12px;box-shadow:var(--shadow);padding:12px 14px;flex:1 1 170px;display:flex;flex-direction:column;gap:2px}
.flow-box span{font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--pink);font-weight:800}
.flow-box small{color:var(--ink2)}.flow>i{font-style:normal;color:var(--ink2);font-size:20px}
.pwa-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin:12px 0}
.pwa-card{background:var(--surface-2);border-radius:12px;padding:14px 16px}.pwa-card h3{font-size:16px}.pwa-card ol{padding-left:20px;margin:0}
.kbd{display:inline-block;border:1px solid var(--line);border-radius:6px;padding:0 6px;background:var(--card);font-weight:700}

/* вход */
.login-box{max-width:460px;margin:20px auto}
.login-box form{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end}
.login-box label{display:flex;flex-direction:column;gap:5px;font-size:14px;color:var(--ink2);flex:1 1 220px}
.code-in{font-family:"Space Grotesk",monospace;font-size:30px!important;letter-spacing:.3em;text-align:center;width:220px;flex:1 1 200px}

/* модальные окна, cookie */
.modal{position:fixed;inset:0;z-index:100;background:rgba(15,20,36,.55);display:grid;place-items:center;padding:16px;overflow:auto}
.modal-box{background:var(--card);color:var(--ink);border-radius:16px;padding:24px 26px;max-width:560px;width:100%;position:relative;box-shadow:0 20px 60px rgba(0,0,0,.3);max-height:calc(100vh - 32px);overflow:auto}
.modal-box.wide{max-width:820px}
.modal-x{position:absolute;top:10px;right:12px;border:0;background:none;font-size:26px;line-height:1;cursor:pointer;color:var(--ink2)}
.modal-open{overflow:hidden}
.consent label.chk,.chk{display:flex;gap:10px;align-items:flex-start;margin:10px 0;font-size:15px}
.chk input{margin-top:4px;flex:none;width:18px;height:18px;accent-color:var(--accent)}
.consent fieldset{border:1px solid var(--line);border-radius:12px;padding:8px 14px;margin:12px 0}
.consent legend{font-weight:700;font-size:14px;padding:0 6px}
.consent .parent{display:flex;flex-direction:column;font-size:14px;gap:4px;margin:4px 0 8px 28px}
.consent .parent input{border:1px solid var(--line);border-radius:8px;padding:6px 10px;background:var(--card)}
.cookie-bar{position:fixed;left:12px;right:12px;bottom:12px;z-index:90;max-width:760px;margin:0 auto;background:var(--ink);color:var(--bg);border-radius:14px;padding:12px 16px;display:flex;gap:14px;align-items:center;justify-content:space-between;font-size:14px;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.cookie-bar a{color:inherit}
.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);opacity:0;transition:.25s;background:var(--ink);color:var(--bg);padding:10px 18px;border-radius:12px;z-index:200;font-weight:600;max-width:90vw}
.toast.on{opacity:1;transform:translate(-50%,0)}.toast.bad{background:var(--bad);color:#fff}

/* кабинет ученика */
.me-units{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:10px}
.me-unit{display:flex;gap:12px;align-items:center;padding:12px 14px;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:var(--ink)}
.me-unit:hover{border-color:var(--accent)}
.me-unit .n{font-family:"Space Grotesk",sans-serif;font-weight:700;font-size:24px;color:var(--blue)}
.me-unit>div{flex:1;min-width:0}.me-unit small{color:var(--ink2)}
.me-unit .bar{margin:5px 0}
.confirm{background:var(--bad-bg);border-radius:12px;padding:12px 16px;margin-top:12px}

/* кабинет преподавателя */
.t-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;flex-wrap:wrap}
.t-tabs{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 18px;border-bottom:1px solid var(--line)}
.t-tabs a{padding:9px 14px;text-decoration:none;color:var(--ink2);font-weight:700;border-bottom:3px solid transparent;margin-bottom:-1px}
.t-tabs a.on{color:var(--ink);border-color:var(--accent)}
.t-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:20px;align-items:start}
.t-col h2 small,.page h2 small{color:var(--ink2);font-weight:500;font-size:15px}
.add-form{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 10px}
.add-form input[name=name]{flex:2 1 160px}.add-form input[name=email]{flex:2 1 170px}.add-form select{flex:1 1 140px}
.disclaimer{font-size:13.5px;color:var(--ink2);background:var(--warn-bg);color:#6b4b00;border-radius:10px;padding:9px 12px;margin:0 0 12px}
:root[data-theme="dark"] .disclaimer{color:#F5D08A;background:#3A2D10}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .disclaimer{color:#F5D08A;background:#3A2D10}}
.filter{width:100%;margin-bottom:10px}
.st-list{display:flex;flex-direction:column;gap:8px}
.st-card{display:flex;gap:10px;align-items:center;border:1px solid var(--line);border-radius:12px;padding:10px 12px;background:var(--card);cursor:grab;user-select:none}
.st-card:hover{border-color:var(--accent)}
.grip{font-size:20px;color:var(--ink2);cursor:grab;touch-action:none;padding:4px 2px}
.st-main{flex:1;min-width:0}
.st-name{font-weight:800;color:var(--ink);text-decoration:none;font-size:15.5px}
.st-mail{color:var(--ink2);font-size:13px;margin-left:8px}
.st-meta{display:flex;flex-wrap:wrap;gap:4px;margin:4px 0}
.st-acts{display:flex;flex-direction:column;gap:6px;align-items:flex-end}
.st-acts select{border:1px solid var(--line);border-radius:999px;background:var(--card);max-width:150px}
.tag{font-size:12px;background:var(--surface-2);color:var(--ink2);border-radius:99px;padding:2px 9px;white-space:nowrap}
.tag.on{background:var(--good-bg);color:var(--good)}.tag.off{background:var(--warn-bg);color:#8a5a00}.tag.sp{background:var(--accent-2);color:var(--accent)}
.mini-bar{display:block;height:6px;border-radius:99px;background:var(--surface-2);overflow:hidden;min-width:60px}
.mini-bar i{display:block;height:100%;background:var(--good)}
.hi{--c:var(--good)}.mid{--c:#C9A300}.lo{--c:var(--warn)}.none{--c:var(--line)}
.mini-bar i.hi,.mini-bar i.mid,.mini-bar i.lo{background:var(--c)}
.spaces{display:flex;flex-direction:column;gap:12px}
.space{border:2px dashed var(--line);border-radius:14px;padding:12px 14px;transition:.15s;background:var(--surface-2)}
.space.drop-over{border-color:var(--accent);background:var(--accent-2);transform:scale(1.01)}
.space-head{display:flex;align-items:center;gap:8px}
.space-name{font-size:16.5px;flex:1}
.space-n{font-weight:800;color:var(--ink2)}
.kind{font-size:11.5px;font-weight:800;text-transform:uppercase;letter-spacing:.04em;padding:2px 8px;border-radius:99px;background:var(--accent-2);color:var(--accent)}
.kind.k-class{background:#E3F1FB;color:#1F6FB2}.kind.k-marathon{background:#FDE6F2;color:#C21E78}.kind.k-other{background:var(--surface-2);color:var(--ink2)}
.space-course{font-size:12.5px;color:var(--ink2);margin-top:2px}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0;min-height:30px}
.chip{display:inline-flex;align-items:center;gap:2px;background:var(--card);border:1px solid var(--line);border-radius:99px;padding:3px 4px 3px 11px;font-size:14px}
.chip a{color:var(--ink);text-decoration:none;font-weight:600}
.chip button{border:0;background:none;color:var(--ink2);cursor:pointer;font-size:17px;line-height:1;padding:0 5px}
.chip button:hover{color:var(--bad)}
.drop-hint{color:var(--ink2);font-size:13.5px;font-style:italic}
.space-foot{display:flex;justify-content:space-between;align-items:center;font-size:14px}
.drag-ghost{position:fixed;left:0;top:0;z-index:300;pointer-events:none;background:var(--accent);color:var(--on-accent);font-weight:800;padding:7px 14px;border-radius:99px;box-shadow:0 8px 24px rgba(0,0,0,.25)}
body.dragging{cursor:grabbing;user-select:none}
.share-link{display:flex;gap:8px;margin:12px 0}
.share-link input{flex:1;border:1px solid var(--line);border-radius:10px;padding:8px 11px;font-family:"Space Grotesk",monospace;background:var(--surface-2);min-width:0}
.qr-wrap{display:flex;gap:18px;align-items:center;flex-wrap:wrap;margin:16px 0;padding:14px;background:var(--surface-2);border-radius:14px}
.qr svg{width:180px;height:180px;background:#fff;border-radius:8px;display:block}
.qr-wrap>div:last-child{flex:1 1 200px}
.stack{display:flex;flex-direction:column;gap:10px}.stack label{display:flex;flex-direction:column;gap:4px;font-size:14px;color:var(--ink2)}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;margin:0 0 20px}
.kpi{background:var(--card);border-radius:12px;box-shadow:var(--shadow);padding:12px 14px}
.kpi .lbl{font-size:12.5px;color:var(--ink2)}.kpi .big{font-family:"Space Grotesk",sans-serif;font-size:24px;font-weight:700}
.st-head{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;align-items:flex-start}
.st-head h2{font-size:28px;margin:0}
.unit-d{border:1px solid var(--line);border-radius:12px;padding:0 14px;margin:8px 0}
.unit-d>summary{display:flex;gap:10px;align-items:center;padding:11px 0;cursor:pointer;list-style:none;flex-wrap:wrap}
.unit-d>summary::-webkit-details-marker{display:none}
.unit-d>summary .n{font-family:"Space Grotesk",sans-serif;font-weight:700;color:var(--blue);font-size:20px}
.unit-d>summary .mini-bar{width:120px}
.u-stat{color:var(--ink2);font-size:13.5px;margin-left:auto}
.unit-d h4{margin:12px 0 6px;font-size:14px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink2)}
.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl th{text-align:left;font-size:12.5px;color:var(--ink2);font-weight:700;padding:6px 8px;border-bottom:1px solid var(--line);white-space:nowrap}
.tbl td{padding:6px 8px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl .num{text-align:right;white-space:nowrap}
.tbl tr.dim td{color:var(--ink2);opacity:.7}
.ex-ins{color:var(--ink2);font-size:13.5px}
.scroll{overflow-x:auto}
.sc{font-weight:800;color:var(--c,var(--ink))}
.prog .cell{font-weight:700;color:var(--c)}.prog .cell.none{color:var(--ink2)}
.prog td.cell.hi{background:color-mix(in srgb,var(--good) 12%,transparent)}
.prog td.cell.mid{background:color-mix(in srgb,#C9A300 12%,transparent)}
.prog td.cell.lo{background:color-mix(in srgb,var(--warn) 12%,transparent)}
.timeline{list-style:none;padding:0;margin:0;max-height:520px;overflow:auto;font-size:14px}
.timeline li{display:flex;gap:12px;padding:5px 0;border-bottom:1px solid var(--line)}
.timeline time{color:var(--ink2);white-space:nowrap;min-width:110px;font-size:13px}
.timeline .ev-login span{font-weight:700;color:var(--good)}
.att{border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin:8px 0}
.att-head{font-size:14px;margin-bottom:4px}
.att-items{margin:0;padding-left:24px;font-size:14.5px}
.att-items li.ok .v{color:var(--good);font-weight:600}.att-items li.bad .v{color:var(--bad);font-weight:600}
.att-items .e{color:var(--ink2);font-size:13.5px}
.writing-v{border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin:8px 0}
.w-meta{font-size:13px;color:var(--ink2);margin-bottom:6px}.w-text{font-family:Georgia,serif;white-space:normal}
.danger-zone{border:1px solid color-mix(in srgb,var(--bad) 40%,transparent)}
.t-loading{padding:40px;text-align:center;color:var(--ink2)}
@media (max-width:860px){.t-grid,.how-grid{grid-template-columns:1fr}}
@media (max-width:760px){
  .top-in{gap:8px;flex-wrap:wrap}.logo span{display:none}
  .top .tabs{order:3;flex:1 1 100%;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin:0 -4px}
  .top .tabs a{white-space:nowrap}
  .who{margin-left:auto}
  .st-card{flex-wrap:wrap}.st-acts{flex-direction:row;width:100%;justify-content:flex-end}
  .cookie-bar{flex-direction:column;align-items:stretch}
  .intro-hero{padding:22px 18px}
  .timeline li{flex-direction:column;gap:0}
}
[hidden]{display:none!important}
/* меню пользователя в шапке */
.who-menu{position:relative}
.who-menu>summary{list-style:none;cursor:pointer}
.who-menu>summary::-webkit-details-marker{display:none}
.who-chip.t .av{background:var(--pink)}
.who-drop{position:absolute;right:0;top:calc(100% + 6px);z-index:60;background:var(--card);border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 32px rgba(23,33,59,.16);padding:10px;min-width:220px;display:flex;flex-direction:column;gap:2px}
.who-drop b{padding:2px 8px}.who-drop small{color:var(--ink2);padding:0 8px 6px;border-bottom:1px solid var(--line);margin-bottom:4px}
.who-drop a,.who-drop button{font:inherit;text-align:left;background:none;border:0;padding:7px 8px;border-radius:8px;color:var(--ink);text-decoration:none;cursor:pointer;font-weight:600;font-size:14.5px}
.who-drop a:hover,.who-drop button:hover{background:var(--surface-2)}
.who-drop button{color:var(--bad)}
/* разбор */
.tag.live{background:var(--good-bg);color:var(--good);font-weight:700}
.rv-start{display:flex;gap:16px;justify-content:space-between;align-items:center;flex-wrap:wrap;border:2px solid var(--accent-2)}
.rv-start>div:first-child{flex:1 1 420px}.rv-start p{margin:4px 0;color:var(--ink2)}
.rv-link{font-size:13px;text-transform:none;letter-spacing:0;font-weight:600;margin-left:8px}
td.acts{white-space:nowrap}
.sp-toggles{display:flex;flex-wrap:wrap;gap:8px}
.sp-tg{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:999px;padding:5px 12px 5px 8px;cursor:pointer;font-weight:600}
.sp-tg input{accent-color:var(--accent);width:17px;height:17px}
.sp-tg:has(input:checked){border-color:var(--accent);background:var(--accent-2)}
.rv-bar{position:sticky;top:57px;z-index:19;background:var(--ink);color:var(--bg)}
.rv-in{max-width:1080px;margin:0 auto;padding:8px 16px;display:flex;gap:8px 10px;align-items:center;flex-wrap:wrap;font-size:14px}
.rv-eye{background:var(--pink);color:#fff;font-weight:800;font-size:12px;text-transform:uppercase;letter-spacing:.05em;padding:3px 9px;border-radius:99px}
.rv-name{font-size:16px}.rv-sp{flex:1}
.rv-live a{color:inherit}
.rv-bar .btn.ghost,.rv-bar .btn.plain{color:var(--bg);border-color:rgba(255,255,255,.35);background:transparent}
.rv-tg{display:inline-flex;gap:6px;align-items:center;font-weight:600;cursor:pointer}
.rv-pos{font-variant-numeric:tabular-nums;opacity:.8}
.dot{display:inline-block;width:9px;height:9px;border-radius:50%;background:#8891a8;vertical-align:middle}
.dot.on{background:#3FD39A;box-shadow:0 0 0 3px rgba(63,211,154,.25)}
body.reviewing .ex{scroll-margin-top:130px}
.rv-panel{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin:6px 0 10px;padding:8px 10px;border-radius:10px;background:var(--surface-2);font-size:13.5px}
.rv-lbl{font-weight:800;color:var(--ink2);margin-right:2px}
.rv-att{font:inherit;font-size:13px;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:999px;padding:3px 10px;cursor:pointer}
.rv-att small{color:var(--ink2)}
.rv-att.a-bad{border-color:color-mix(in srgb,var(--bad) 50%,transparent)}.rv-att.a-good{border-color:color-mix(in srgb,var(--good) 50%,transparent)}
.rv-att.a-shown{border-style:dashed}.rv-att.a-draft{border-color:var(--pink);color:var(--pink)}
.rv-panel .rv-att.on{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}.rv-panel .rv-att.on small{color:inherit;opacity:.8}
.rv-note{color:var(--ink2);margin-left:auto}
.rv-empty{color:var(--ink2);font-style:italic}
.ex.rv-none{opacity:.55}
.ex.rv-here{outline:3px solid var(--pink);outline-offset:6px;border-radius:8px}
.ex.rv-here .ins::before{content:"● ученик здесь  ";color:var(--pink);font-weight:800;font-size:13px}
.ex.rv-flash{animation:rvflash 1.2s}
@keyframes rvflash{0%{background:var(--accent-2)}100%{background:transparent}}
.writer.rv-none textarea{opacity:.5}
@media (max-width:760px){.rv-bar{top:96px}.who-name{display:none}.who-chip{padding:4px}.rv-tg{font-size:13px}}